1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* Copyright 2013, Google LLC
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google LLC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.android.tools.smali.dexlib2;
import static com.android.tools.smali.dexlib2.VersionMap.NO_VERSION;
import static com.android.tools.smali.dexlib2.VersionMap.mapApiToArtVersion;
import static com.android.tools.smali.dexlib2.VersionMap.mapArtVersionToApi;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.EnumMap;
import java.util.HashMap;
import com.android.tools.smali.util.UnmodifiableRangeMap;
public class Opcodes {
/**
* Either the api level for dalvik opcodes, or the art version for art opcodes
*/
public final int api;
public final int artVersion;
@Nonnull private final Opcode[] opcodesByValue = new Opcode[256];
@Nonnull private final EnumMap<Opcode, Short> opcodeValues;
@Nonnull private final HashMap<String, Opcode> opcodesByName;
@Nonnull
public static Opcodes forApi(int api) {
return new Opcodes(api, NO_VERSION);
}
@Nonnull
public static Opcodes forArtVersion(int artVersion) {
return new Opcodes(NO_VERSION, artVersion);
}
@Nonnull
public static Opcodes forDexVersion(int dexVersion) {
int api = VersionMap.mapDexVersionToApi(dexVersion);
if (api == NO_VERSION) {
throw new RuntimeException("Unsupported dex version " + dexVersion);
}
return new Opcodes(api, NO_VERSION);
}
/**
* @return a default Opcodes instance for when the exact Opcodes to use doesn't matter or isn't known
*/
@Nonnull
public static Opcodes getDefault() {
// The last pre-art api
return forApi(20);
}
private Opcodes(int api, int artVersion) {
if (api >= 21) {
this.api = api;
this.artVersion = mapApiToArtVersion(api);
} else if (artVersion >= 0 && artVersion < 39) {
this.api = mapArtVersionToApi(artVersion);
this.artVersion = artVersion;
} else {
this.api = api;
this.artVersion = artVersion;
}
opcodeValues = new EnumMap<Opcode, Short>(Opcode.class);
opcodesByName = new HashMap<>();
int version;
if (isArt()) {
version = this.artVersion;
} else {
version = this.api;
}
for (Opcode opcode: Opcode.values()) {
UnmodifiableRangeMap<Integer, Short> versionToValueMap;
if (isArt()) {
versionToValueMap = opcode.artVersionToValueMap;
} else {
versionToValueMap = opcode.apiToValueMap;
}
Short opcodeValue = versionToValueMap.get(version);
if (opcodeValue != null) {
if (!opcode.format.isPayloadFormat) {
opcodesByValue[opcodeValue] = opcode;
}
opcodeValues.put(opcode, opcodeValue);
opcodesByName.put(opcode.name.toLowerCase(), opcode);
}
}
}
@Nullable
public Opcode getOpcodeByName(@Nonnull String opcodeName) {
return opcodesByName.get(opcodeName.toLowerCase());
}
@Nullable
public Opcode getOpcodeByValue(int opcodeValue) {
switch (opcodeValue) {
case 0x100:
return Opcode.PACKED_SWITCH_PAYLOAD;
case 0x200:
return Opcode.SPARSE_SWITCH_PAYLOAD;
case 0x300:
return Opcode.ARRAY_PAYLOAD;
default:
if (opcodeValue >= 0 && opcodeValue < opcodesByValue.length) {
return opcodesByValue[opcodeValue];
}
return null;
}
}
@Nullable
public Short getOpcodeValue(@Nonnull Opcode opcode) {
return opcodeValues.get(opcode);
}
public boolean isArt() {
return artVersion != NO_VERSION;
}
}
|
